CVE-2021-45687: Raw cpuid Deserialization Of Untrusted Data Vulnerability

CRITICAL
Advisory Identifier: GHSA-w428-f65r-h4q2
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CVSS 9.8
CWE-502
Published
Advisory Summary

CVE-2021-45687 is a CRITICAL (CVSS 9.8) deserialization of untrusted data vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Raw cpuid libraries in the crates.io ecosystem. The issue involves deserialization of untrusted data in rust-cpuid. Remediation is available by upgrading affected packages to version 9.1.1.

CVE-2021-45687 at a Glance

CVE Identifier CVE-2021-45687
GHSA Identifier GHSA-w428-f65r-h4q2
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Raw cpuid
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-45687

To remediate this vulnerability, upgrade all affected Raw cpuid dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

raw-cpuid fixed: 9.1.1 
Upgrade raw-cpuid to 9.1.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for raw-cpuid

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-45687, inspect your project dependencies for Raw cpuid:

inspect dependencies for raw-cpuid

Analyze the terminal output to locate any version of Raw cpuid in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.1.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Raw cpuid, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue was discovered in the raw-cpuid crate before 9.1.1 for Rust. If the serialize feature is used (which is not the the default), a Deserialize operation may lack sufficient validation, leading to memory corruption or a panic.

CVE-2021-45687 Affected Raw cpuid Versions

1 component(s)
Fixed Versions:
9.1.1
Product / Package Ecosystem Affected Versions Fixed Version
raw-cpuid
 crates.io
≥ 3.1.0
< 9.1.1
9.1.1

References

NVD — CVE-2021-45687 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45687
Raw cpuid Source Repository REPOSITORY
https://github.com/gz/rust-cpuid/issues/43
Raw cpuid Source Repository REPOSITORY
https://github.com/gz/rust-cpuid
raw.githubusercontent.com/rustsec/advisory-db... WEB
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/raw-cpuid/RUSTSEC-2021-0089.md
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2021-0089.html

Frequently Asked Questions

What is CVE-2021-45687?
CVE-2021-45687 is a security vulnerability in Raw cpuid involving Deserialization of Untrusted Data in rust-cpuid under CWE-502: Deserialization of Untrusted Data.
Which Raw cpuid versions are affected?
Affected versions include releases prior to 9.1.1 across affected packages: raw-cpuid.
What version fixes CVE-2021-45687?
Upgrading to 9.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is raw-cpuid affected?
Yes, raw-cpuid is affected in releases prior to 9.1.1. Upgrade your dependency to 9.1.1 or later.
What is the CVSS score of CVE-2021-45687?
CVE-2021-45687 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-45687?
CVE-2021-45687 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check crates.io dependencies for CVE-2021-45687?
Run the dependency tree command: 'inspect dependencies for raw-cpuid'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w428-f65r-h4q2",
  "modified" : "2022-01-07T17:23:21Z",
  "published" : "2022-01-06T22:13:12Z",
  "aliases" : [ "CVE-2021-45687" ],
  "summary" : "Deserialization of Untrusted Data in rust-cpuid",
  "details" : "An issue was discovered in the raw-cpuid crate before 9.1.1 for Rust. If the serialize feature is used (which is not the the default), a Deserialize operation may lack sufficient validation, leading to memory corruption or a panic.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "raw-cpuid"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.1.0"
      }, {
        "fixed" : "9.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-45687"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gz/rust-cpuid/issues/43"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gz/rust-cpuid"
  }, {
    "type" : "WEB",
    "url" : "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/raw-cpuid/RUSTSEC-2021-0089.md"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2021-0089.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-06T16:40:56Z",
    "nvd_published_at" : "2021-12-27T00:15:00Z"
  }
}